Bring a large pot of water to boil.,Heavily salt the water and cook the pasta for 8-10 minutes until it is just shy of al dente.,Drain well and set aside.,In a small saucepan, add the milk and bring to a slow simmer.,Preheat oven to 400 F.,Meanwhile, in a large pot, melt the butter and vegetable oil together over medium-low heat.,______,Whisk in the hot milk and continue to stir until the sauce thickens.,Remove the pot from heat and add in the Gruyere, cheddar and fontina cheeses.,Stir until the cheeses have melted and then add in the red pepper flakes, nutmeg, kosher salt and black pepper.,Add in the pasta and lobster and stir until thoroughly combined.,Pour the mixture into a greased 9x9 inch baking dish.,Sprinkle the top with panko breadcrumbs and Parmesan cheese.,Drizzle the olive oil over the top and bake in a 400 F oven for 25-30 minutes or until the top is golden brown.,Remove from the oven and sprinkle the chives over the baked dish.